Short Answer

Calculating Welfare Changes from Introducing a Fee

An online educational platform initially offers a popular video series for free, attracting 5,000 users. The total value (consumer surplus) for these users is estimated at $100,000. To cover costs, the platform introduces a $10 access fee. After the fee is introduced, the number of users drops to 2,000, and the total value (consumer surplus) for these remaining users is now $30,000. Based on this information, calculate:

  1. The total revenue generated by the platform.
  2. The total loss in benefits experienced by the listeners (the change in consumer surplus).
  3. The total loss in overall social benefit.

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Updated 2025-08-01

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